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EM8635 Datasheet

PWM Controller

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EM8635
Green mode PWM Flyback Controller with Brown-Out Protection
General Description
EM8635 is a high performance, low startup
current, low cost, current mode PWM controller
with green mode power saving. The EM8635
integrates functions of Soft Start(SS), Under Voltage
Lockout(UVLO), Leading Edge Blanking(LEB),
internal Over Temperature Protection(OTP),
internal slope compensation. The EM8635 also
features more protection like Over Load
Protection(OLP), Brown-out Protection(BNO) and
Over Voltage Protection(OVP) to prevent circuit
damage occurred under abnormal conditions.
The EM8635 provides the users a superior
AC/DC power application of high efficiency,
excellent EMI performance, low external
component counts and lower cost solution.
Ordering Information
Features
Ultra Low Start Up Current (6uA)
Current Mode Control
Soft Start Function
Built-in Slope Compensation
Internal Leading-edge Blanking
Over Voltage Protection (OVP) on VDD pin
Over Load Protection (OLP)
Cycle-by-cycle Current Limit
Feedback Open Protection
Brown-out Protection
Internal Over Temperature Protection (OTP)
Constant Output Power Limit (Full AC Input
Range)
Internal Frequency Jittering for Excellent
EMI performance
Part Number
EM8635J
Package
SOT-23-6
Remark
Applications
Switching AC/DC Adaptor and charger
Open-Frame SMPS
Typical Application Circuit
AC
INPUT
EMI
Filter
DC
+ OUTPUT
VDD
BNO
GATE
EM8635
COMP
CS
GND
2013/05/13
A.1
1
Excelliance MOS
Excelliance MOS



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